/*
 * TeleStax, Open Source Cloud Communications  Copyright 2012. 
 * and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.protocols.ss7.map.service.supplementary;

import java.io.IOException;

import javolution.xml.XMLFormat;
import javolution.xml.stream.XMLStreamException;

import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.asn.Tag;
import org.mobicents.protocols.ss7.map.api.MAPException;
import org.mobicents.protocols.ss7.map.api.MAPMessageType;
import org.mobicents.protocols.ss7.map.api.MAPOperationCode;
import org.mobicents.protocols.ss7.map.api.MAPParsingComponentException;
import org.mobicents.protocols.ss7.map.api.MAPParsingComponentExceptionReason;
import org.mobicents.protocols.ss7.map.api.datacoding.CBSDataCodingScheme;
import org.mobicents.protocols.ss7.map.api.primitives.USSDString;
import org.mobicents.protocols.ss7.map.api.service.supplementary.ProcessUnstructuredSSResponse;
import org.mobicents.protocols.ss7.map.datacoding.CBSDataCodingSchemeImpl;
import org.mobicents.protocols.ss7.map.primitives.USSDStringImpl;

/**
 * 
 * @author amit bhayani
 * 
 */
public class ProcessUnstructuredSSResponseImpl extends SupplementaryMessageImpl implements
		ProcessUnstructuredSSResponse {

	/**
	 * 
	 */
	public ProcessUnstructuredSSResponseImpl() {
		super();
	}

	public ProcessUnstructuredSSResponseImpl(CBSDataCodingScheme ussdDataCodingSch, USSDString ussdString) {
		super(ussdDataCodingSch, ussdString);
	}

	public MAPMessageType getMessageType() {
		return MAPMessageType.processUnstructuredSSRequest_Response;
	}

	public int getOperationCode() {
		return MAPOperationCode.processUnstructuredSS_Request;
	}

	public int getTag() throws MAPException {
		return Tag.SEQUENCE;
	}

	public int getTagClass() {
		return Tag.CLASS_UNIVERSAL;
	}

	public boolean getIsPrimitive() {
		return false;
	}

	public void decodeAll(AsnInputStream ansIS) throws MAPParsingComponentException {

		try {
			int length = ansIS.readLength();
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new MAPParsingComponentException(
					"IOException when decoding ProcessUnstructuredSSResponseIndication: " + e.getMessage(), e,
					MAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new MAPParsingComponentException(
					"AsnException when decoding ProcessUnstructuredSSResponseIndication: " + e.getMessage(), e,
					MAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	public void decodeData(AsnInputStream ansIS, int length) throws MAPParsingComponentException {

		try {
			this._decode(ansIS, length);
		} catch (IOException e) {
			throw new MAPParsingComponentException(
					"IOException when decoding ProcessUnstructuredSSResponseIndication: " + e.getMessage(), e,
					MAPParsingComponentExceptionReason.MistypedParameter);
		} catch (AsnException e) {
			throw new MAPParsingComponentException(
					"AsnException when decoding ProcessUnstructuredSSResponseIndication: " + e.getMessage(), e,
					MAPParsingComponentExceptionReason.MistypedParameter);
		}
	}

	private void _decode(AsnInputStream ansIS, int length) throws MAPParsingComponentException, IOException,
			AsnException {

		AsnInputStream ais = ansIS.readSequenceStreamData(length);

		int tag = ais.readTag();

		// ussd-DataCodingScheme USSD-DataCodingScheme
		if (ais.getTagClass() != Tag.CLASS_UNIVERSAL || !ais.isTagPrimitive())
			throw new MAPParsingComponentException(
					"Error while decoding ProcessUnstructuredSSResponseIndication: Parameter ussd-DataCodingScheme bad tag class or not primitive",
					MAPParsingComponentExceptionReason.MistypedParameter);

		int length1 = ais.readLength();
		this.ussdDataCodingSch = new CBSDataCodingSchemeImpl(ais.readOctetStringData(length1)[0]);

		tag = ais.readTag();

		// ussd-String USSD-String
		if (ais.getTagClass() != Tag.CLASS_UNIVERSAL || !ais.isTagPrimitive())
			throw new MAPParsingComponentException(
					"Error while decoding ProcessUnstructuredSSResponseIndication: Parameter ussd-String bad tag class or not primitive",
					MAPParsingComponentExceptionReason.MistypedParameter);

		this.ussdString = new USSDStringImpl(this.ussdDataCodingSch);
		((USSDStringImpl) this.ussdString).decodeAll(ais);

	}

	public void encodeAll(AsnOutputStream asnOs) throws MAPException {

		this.encodeAll(asnOs, Tag.CLASS_UNIVERSAL, Tag.SEQUENCE);
	}

	public void encodeAll(AsnOutputStream asnOs, int tagClass, int tag) throws MAPException {

		try {
			asnOs.writeTag(tagClass, false, tag);
			int pos = asnOs.StartContentDefiniteLength();
			this.encodeData(asnOs);
			asnOs.FinalizeContent(pos);
		} catch (AsnException e) {
			throw new MAPException("AsnException when encoding ProcessUnstructuredSSResponseIndication", e);
		}
	}

	public void encodeData(AsnOutputStream asnOs) throws MAPException {

		if (this.ussdString == null)
			throw new MAPException("ussdString must not be null");

		try {
			asnOs.writeOctetString(new byte[] { (byte)this.ussdDataCodingSch.getCode() });

			((USSDStringImpl) this.ussdString).encodeAll(asnOs);

		} catch (IOException e) {
			throw new MAPException("IOException when encoding ProcessUnstructuredSSResponseIndication", e);
		} catch (AsnException e) {
			throw new MAPException("AsnException when encoding ProcessUnstructuredSSResponseIndication", e);
		}
	}

	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append("ProcessUnstructuredSSResponse [");
		if(this.getMAPDialog() != null){
			sb.append("DialogId=").append(this.getMAPDialog().getDialogId());
		}
		sb.append(super.toString());
		sb.append("]");

		return sb.toString();
	}

	/**
	 * XML Serialization/Deserialization
	 */
	protected static final XMLFormat<ProcessUnstructuredSSResponseImpl> PROCESS_UNSTRUCTURED_SS_RESPONSE_XML = new XMLFormat<ProcessUnstructuredSSResponseImpl>(
			ProcessUnstructuredSSResponseImpl.class) {

		@Override
		public void read(javolution.xml.XMLFormat.InputElement xml,
				ProcessUnstructuredSSResponseImpl ussdMessage) throws XMLStreamException {
			USSD_MESSAGE_XML.read(xml, ussdMessage);

		}

		@Override
		public void write(ProcessUnstructuredSSResponseImpl ussdMessage,
				javolution.xml.XMLFormat.OutputElement xml) throws XMLStreamException {
			USSD_MESSAGE_XML.write(ussdMessage, xml);
		}
	};

}
